Engine compression brake system

Details Engine compression brake system Engine compression brake system

F - Mech Eng,Light,Heat,Weapons

01

L

F01L 13/06 (2006.01) F01L 1/26 (2006.01) F02D 13/04 (2006.01)

Patent

CA 2322988

An engine compression braking system includes an exhaust rocker arm pivotally supported on rocker shaft. One end of the rocker arm carries a roller which engages a camshaft which has a lost motion bump formed thereon. The other end of the rocker arm engages an exhaust valve stem assembly. A part of the rocker shaft engages a pressure operated piston. Extension of the piston moves the rocker shaft transversely to its axis, so that the rocker arm can selectively react to or ignore the lost motion portion bump. A pressure control system includes a solenoid operated valve controlled by an operator controlled switch, so that the piston selectively applies a light force or a very high force to the rocker arm rocker shaft, thus controlling the pivot point of the rocker arm.

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